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Europium complex and preparation method thereof

A europium complex, molar ratio technology, applied in chemical instruments and methods, compounds containing periodic table Group 3/13 elements, luminescent materials, etc., can solve problems such as unreported, achieve simple process, fast growth, high yield effect

Inactive Publication Date: 2016-08-31
SHANXI UNIV
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Problems solved by technology

So far, (+)-2,3-diacetyl-p-toluene-D-tartaric acid complexes based on alkaline earth metal calcium have been successfully prepared, but rare earth metals and (+)-2,3-diacetyl-p-toluene- The complex of D-tartaric acid has not been reported

Method used

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  • Europium complex and preparation method thereof
  • Europium complex and preparation method thereof
  • Europium complex and preparation method thereof

Examples

Experimental program
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Embodiment 1

[0019] Example 1. The D-H 2 DTTA (0.1mmol, 0.0386g) was dissolved in 2.5mL methanol, then 2.5mL EuCl 3 (0.066mmol, 0.0170g) aqueous solution, stirred at room temperature for 10 minutes, then slowly added KOH solution (0.2mol / L, 150μL) to it, stirred at room temperature for 7 hours, filtered and placed the obtained clear solution at room temperature, after 2 days A colorless and transparent triangular prism single crystal precipitated and was collected by filtration with a yield of about 48%.

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Abstract

The invention relates to an europium complex and a preparation method thereof. The europium complex is shown as a condensed structural formula [Eu(D-DTTA)3(CH3O)3]n, wherein D-H2DTTA refers to (+)-2,3-diacetyl para-toluene-D-tartaric acid, and CH3OH refers to methanol. The preparation method includes mixing a D-H2DTTA methanol solution with an EuCl3 water solution, adding a specific quantity of KOH waste solution to regulate a pH value to range from 3.0 to 4.5, stirring, standing until colorless and transparent triangular prism crystals separate out sufficiently, filtering and collecting a product, wherein the yield is 48%. The europium complex structurally comprises nine-coordinated europium ions, and ligands refer to D-DTTA<2-> and CH3O<-> negative ions. The solid europium complex can serve as an optical material by representing strong red light characteristics of Eu (III) by being excited by light 280 nm in wavelength.

Description

technical field [0001] The present invention relates to metal complexes, in particular to a one-dimensional chain europium complex, especially a luminescent complex based on europium (III) ions and (+)-2,3-diacetyl-p-toluene-D-tartaric acid. Properties of europium complexes and methods for their preparation. Background technique [0002] Rare earth metal complexes have broad application prospects in the fields of luminescence, catalysis, and biomedicine due to their optical, electrical, and magnetic properties. Among them, rare earth metal organic complexes as photoluminescent materials are compared with traditional inorganic luminescent materials. , due to the unique structure and properties of rare earth ions, they have the advantages of high luminous intensity, pure fluorescent color, low excitation energy, high fluorescent efficiency, and easy solubility in organic media after they are coordinated with organic ligands. Therefore, it is considered to be the most promisin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F5/00C09K11/06
CPCC07F5/00C09K11/06C09K2211/182
Inventor 冯思思郑剑锋卢丽萍
Owner SHANXI UNIV
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